fpga-manager: altera-ps-spi: preserve nCONFIG state
commit9922fd0c681f4755422900c529290d393229d38d
authorAnatolij Gustschin <agust@denx.de>
Sun, 15 Apr 2018 18:33:08 +0000 (15 11:33 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 1 May 2018 19:58:24 +0000 (1 12:58 -0700)
treee1dc8c999802199669f599310c3225186e821ace
parent7563d6f2be58010edecd145faa06bcd82251caa0
fpga-manager: altera-ps-spi: preserve nCONFIG state

commit 881c93c0fb73328845898344208fa0bf0d62cac6 upstream.

If the driver module is loaded when FPGA is configured, the FPGA
is reset because nconfig is pulled low (low-active gpio inited
with GPIOD_OUT_HIGH activates the signal which means setting its
value to low). Init nconfig with GPIOD_OUT_LOW to prevent this.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Cc: stable <stable@vger.kernel.org> # 4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/fpga/altera-ps-spi.c